The chemical element of Fe2+ Essay Example | Topics and Well Written Essays - 1000 words

The chemical element of Fe2+ - Essay Example Nanopure water and a factor of 4 with 1M HCl dilutes unknown measured mass. Recordings from voltmeter make it possible for the use of end-point calculation, and Fe2+ concentration in the unknown (2). The actual weight of ceric (IV) ammonium nitrate undergoes division by the molecular weight of the final volume of the solution to come up with Ce4+ concentration that is expected. Equation (1) and the table (1) numeric values are essential in the calculation of the Ce4+solution, expected to be 0.100M in concentration. 1M HCl preparation Since only 12M HCl is given, then nanopure water aids in preparing the 1M HCl by dilution. Notably, results from equation (2) evident the preparation of 1.00M, HCl concentration. Standardization titration Hereby, only two titrations that are slow is counted out of the three in the process. Data from the second titration is revealed in figure 1 and table 3.Volume is calculated using both equation (3) and (4) and first voltage derivative respectively. The slope of the voltage represents the value of the first derivative throughout the whole titration. Moreover, the end-point on titration graph coincides with the maximum point of the first derivative graph. Following this, it is easy and clear to find the end- product of titration. However, the end-point on the titration graph is the same as the maximum point on the first derivative graph. Following this, 19.1mL of Ce4+ in solution forms end-point, which is in red on the table and again represented by the red arrow on the graph 1.